The new version of CheckUser (//Special:Investigate//) will be deployed to all wikis in the next few weeks. This task is to track all the things we will be measuring.
**Adoption**: Comparing usage for the new tool versus the old tool
[x] How often Special:Investigate is accessed?
[x] How often Special:Checkuser is accessed?
**User experience**
[x] How many users does an investigation start with?
[ ] How many users are under investigation by the time the investigation ends?
[x] How many records are fetched per investigation?
[x] How often did we display incomplete results to the user?
[x] How long did a user spend waiting for the results?
**Feature usage**
[ ] Over the course of an investigation how often did a user access the individual tabs over the course of the investigation?
[x] How many times did a user pin a highlight?
[x] How often did the block feature get used and how many users were blocked?
**User reliance on external IP tools**
[x] Which tools under the IP address were clicked and how many times?
Other metrics we'd like to track after we have developed a 'Done' button
* How often did a user quit the investigation (page close or back button) while the results were being generated?
Schema: [eventlogging data](https://meta.wikimedia.org/wiki/Schema:SpecialInvestigate)
related ticket: https://phabricator.wikimedia.org/T246951#6148694
We'll probably be getting this data on a weekly basis for all the wikis that has local checkusers. We should get this data for all wikis on a slower cadence.